Well... fair enough, then. I thought the journey into the basemement was bad.Some will call this sacrilege, but I like the film better than the book. The book was good, but not the Pulitzer-deserving masterpiece everyone was making it out to be.
As for "worse", I assume you mean more morbid than the film? I would say yes; note for example that the film left out the infamous Baby-roasting on a spit scene.
Either way, they're still left with a nonexistent (as far as we know) ecosphere. That beetle they saw towards the end of the film? As far as I'm aware, beetles live pretty well off dead matter, i.e. all the trees.
Also, is it me, or was it made pretty clear (in the film) what had happened? That is, a nuclear war. Viggo Mortenson's character talks, in voiceover, about "a bright flash, the ground shook, and everything electrical went dead", or something to that effect. Yet everyone I've heard talking about it treats it like it's a big mystery.